从备案信息和产品实拍图来看，珀莱雅的这款「净透黑头导出液」归属于“珀莱雅轻系列（PROYA LIGHT）”。该系列主打“轻简配方×轻快步骤”的轻量级方案，深度适配短视频/直播生态，专研年轻肌护肤。截至目前，轻系列还储备了3款面膜产品。
We’ve argued that the zero-knowledge paradigm has two advantages over simple Chaumian credentials. First, it’s potentially much more expressive. Second, it allows a User to re-use a single credential many times without needing to constantly retrieve new single-use credentials from the Issuer. While that’s very convenient, it raises a concern we already discussed: what happens if a hacker steals one of these re-usable credentials?，更多细节参见WPS官方版本下载
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